Gene duplication confers enhanced expression of 27-kDa γ-zein for endosperm modification in quality protein maize
نویسندگان
چکیده
منابع مشابه
Gene duplication confers enhanced expression of 27-kDa γ-zein for endosperm modification in quality protein maize.
The maize opaque2 (o2) mutant has a high nutritional value but it develops a chalky endosperm that limits its practical use. Genetic selection for o2 modifiers can convert the normally chalky endosperm of the mutant into a hard, vitreous phenotype, yielding what is known as quality protein maize (QPM). Previous studies have shown that enhanced expression of 27-kDa γ-zein in QPM is essential for...
متن کاملMaize 27 kDa γ-Zein Is a Potential Allergen for Early Weaned Pigs
HARI B. KRISHNAN,* MONTY S. KERLEY, GARY L. ALLEE, SUNGCHAN JANG, WON-SEOK KIM, AND CHUNJIANG J. FU U.S. Department of Agriculture-Agricultural Research Service, Plant Genetics Research Unit, 205 Curtis Hall, University of Missouri, Columbia, Missouri 65211, Division of Plant Science, 1-41 Agriculture Building, University of Missouri, Columbia, Missouri 65211, and Division of Animal Science, S1...
متن کاملγ-Zeins are essential for endosperm modification in quality protein maize
Zeins are essential for endosperm modification in quality protein maize" Essential amino acids like lysine and tryptophan are deficient in corn meal because of the abundance of zein storage proteins that lack these amino acids. A natural mutant, opaque 2 (o2) causes reduction of zeins, an increase of nonzein proteins, and as a consequence, a doubling of lysine levels. However, o2's soft inferio...
متن کاملFunctional Genomics of Maize Endosperm Maturation and Protein Quality
Quality Protein Maize (QPM) is a hard kernel variant of the high-lysine mutant, opaque2. Using γ-irradiation, we created opaque QPM variants to identify opaque-2 modifier genes and to investigate deletion mutagenesis combined with Illumina sequencing as a maize functional genomics tool. A K0326Y-QPM deletion mutant (line 107) was null for the 27and 50-kD γ-zeins and abolished vitreous endosperm...
متن کاملGamma-zeins are essential for endosperm modification in quality protein maize.
Essential amino acids like lysine and tryptophan are deficient in corn meal because of the abundance of zein storage proteins that lack these amino acids. A natural mutant, opaque 2 (o2) causes reduction of zeins, an increase of nonzein proteins, and as a consequence, a doubling of lysine levels. However, o2's soft inferior kernels precluded its commercial use. Breeders subsequently overcame ke...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the National Academy of Sciences
سال: 2016
ISSN: 0027-8424,1091-6490
DOI: 10.1073/pnas.1601352113